RFR: 8220074: Clean up GCC 8.3 errors in LittleCMS

[Phil Race]

Was this ever reported upstream ?

I'd like someone from build dev to comment on this, meaning
the way the GCC version is detected and the separation of this into a 
separate block.
We probably have some precedent & pattern for version specific warnings ..

-phil.

On 11/12/19 6:48 AM, Yasumasa Suenaga wrote:
> Hi all,
>
> Please review this change:
>
>   JBS: https://bugs.openjdk.java.net/browse/JDK-8220074
>   webrev: http://cr.openjdk.java.net/~ysuenaga/JDK-8220074/webrev.00/
>
> I saw some -Wstringop-truncation warnings in LCMS when I build OpenJDK 
> with GCC 9.2.1 on Fedora 31.
> They are LCMS problems, thus we should avoid them to disable these 
> warnings.
>
> This change has been tested on submit repo 
> (mach5-one-ysuenaga-JDK-8220074-20191112-1334-6642576).
>
>
> Thanks,
>
> Yasumasa